JPS6116865A - Recording globule discharge type recording device - Google Patents
Recording globule discharge type recording deviceInfo
- Publication number
- JPS6116865A JPS6116865A JP12683485A JP12683485A JPS6116865A JP S6116865 A JPS6116865 A JP S6116865A JP 12683485 A JP12683485 A JP 12683485A JP 12683485 A JP12683485 A JP 12683485A JP S6116865 A JPS6116865 A JP S6116865A
- Authority
- JP
- Japan
- Prior art keywords
- recording
- ink
- heating element
- flow path
- downstream side
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14016—Structure of bubble jet print heads
- B41J2/14088—Structure of heating means
- B41J2/14112—Resistive element
- B41J2/14137—Resistor surrounding the nozzle opening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
- B41J2/135—Nozzles
- B41J2/14—Structure thereof only for on-demand ink jet heads
- B41J2/14016—Structure of bubble jet print heads
- B41J2/14032—Structure of the pressure chamber
- B41J2/1404—Geometrical characteristics
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は熱エネルギを利用してインク液滴を記録媒体に
向けて飛翔させる形式の記録装置に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a recording device that uses thermal energy to fly ink droplets toward a recording medium.
（徒来技術）
タンクと吐出口を結ぶ流路内に圧電素子を配設し、これ
に信号電圧を印加して歪ませることにより、流路内のイ
ンクを加圧してその一部を吐出口よりインク液滴として
記録媒体上に吐出させるようにしたオンデマンド型のイ
ンクジェット記録装置は、記録時に騒音が発生しないこ
とと、普通紙上への記録が可能な点で優れているが、反
面、圧電素子の歪量が小さいために所要粒径のインク液
滴を吐出させるには素子の有効面積を大きくしなければ
ならず、多数の吐出口を高密度に配列するのが困難であ
るといった問題を有するほか、素子が復元する際に吸引
されたインクが復帰するのに時間を要するため、記録速
度を上げることができないといった問題を有している。(Archived technology) A piezoelectric element is placed in the flow path connecting the tank and the ejection port, and by applying a signal voltage to it and distorting it, the ink in the flow path is pressurized and a part of it is connected to the ejection port. On-demand inkjet recording devices that eject ink droplets onto a recording medium are superior in that they do not generate noise during recording and can record on plain paper, but on the other hand, piezoelectric Because the amount of distortion in the element is small, the effective area of the element must be increased in order to eject ink droplets of the required particle size, and this solves the problem that it is difficult to arrange a large number of ejection ports at high density. In addition, it takes time for the sucked ink to return when the element is restored, so there is a problem that the printing speed cannot be increased.
（目的）
本発明はかかる問題に鑑みてなされたもので、その目的
とするところは、装置の小型化と高速記録が可能な新た
な記録装置を提供することにある。(Purpose) The present invention has been made in view of the above problems, and its purpose is to provide a new recording device that can be miniaturized and capable of high-speed recording.
（目的達成のための手段）
すなわち、本発明はかかる目的を達成すべく、記録液体
流路の液滴吐出用オリフィス近傍に記録信号を受けて記
録液体を加熱する加熱手段を設けるとともに、一端が該
加熱手段の」：流側において、他端が該加熱手段の下流
側においてそれぞれ１−配流路に連通ずるバイパス流路
を設けた記録液滴吐出型記録装置にある。(Means for Achieving the Object) That is, in order to achieve the above object, the present invention provides a heating means for heating the recording liquid in response to a recording signal in the vicinity of the droplet ejection orifice of the recording liquid flow path. A recording liquid droplet discharge type recording apparatus is provided with a bypass flow path on the flow side of the heating means, the other end of which communicates with the flow path 1 on the downstream side of the heating means.
（実施例）
そこで以下に本発明の詳細を図示した実施例に基づいて
説明する。(Example) The details of the present invention will be described below based on illustrated examples.
第１図は本発明に係る記録装置の概要を示したもので、
ヘッドｌを構成するハウジング２には、一端が管３を介
してインクタンク４と連通ずるインク室５が設けられ、
また、このインク室５の他端はインク液滴を吐出するオ
リフィス６として形成された１−１この近傍内面には、
抵抗体等よりなる筒状の発熱体７が一体的に設けられて
いて、その両端に設けた電極８．８に駆動信号を印加す
ることによりその部分のインクを気化し、その体積膨張
を利用してオリフィス６よりインク液滴を吐出するよう
に構成されている。FIG. 1 shows an overview of the recording device according to the present invention.
A housing 2 constituting the head l is provided with an ink chamber 5 whose one end communicates with an ink tank 4 via a pipe 3.
The other end of this ink chamber 5 is formed as an orifice 6 for ejecting ink droplets.
A cylindrical heating element 7 made of a resistor or the like is integrally provided, and by applying a drive signal to electrodes 8.8 provided at both ends of the heating element 7, the ink in that area is vaporized and the volumetric expansion is utilized. The ink droplet is ejected from the orifice 6 in this manner.
他方このハウジング２には、−１−記したインク室５の
ほかに発熱体７の１−流側においてインクタンク４から
のインクを導入するバイパス管路９が形成され、その他
端は発熱体７の下流側においてインク室５と連通し、イ
ンクを噴射した後に生じる負圧によって発熱体７の下流
側にインクを補給するように構成されている。On the other hand, in addition to the ink chamber 5 marked -1-, this housing 2 is formed with a bypass conduit 9 for introducing ink from the ink tank 4 on the 1-stream side of the heating element 7, and the other end is connected to the heating element 7. It communicates with the ink chamber 5 on the downstream side of the heating element 7, and is configured to replenish ink to the downstream side of the heating element 7 by the negative pressure generated after ink is ejected.
したがって、いまオリフィス６の内面に設けた筒状の発
熱体７に信号電圧を印加すると、その部分のインクは加
熱されて気化しく第２図 （ａ））、その際の体積膨張
により、それまでその前方でメニスカスａを形成して安
定的に位置していたインクをインク液滴として図示しな
い記録媒体に向けて噴出させ、また、これと同時に発熱
体７により加熱気化したインクは、オリフィス６′の内
面に付着したインク等を払拭しつつ噴出する（第２図（
ｂ））。Therefore, when a signal voltage is applied to the cylindrical heating element 7 provided on the inner surface of the orifice 6, the ink in that area is heated and vaporized (Figure 2 (a)), and due to the volumetric expansion at that time, the ink in that area is heated and vaporized. The ink that was stably positioned in front of it by forming a meniscus a is ejected as ink droplets toward a recording medium (not shown), and at the same time, the ink that is heated and vaporized by the heating element 7 is ejected from the orifice 6'. It ejects while wiping away ink etc. that has adhered to the inner surface of the (Fig. 2 (
b)).
このようにしてオリフィス６からインク液滴と気化した
インクが噴出すると、発熱体７よりオリフィス６に至る
流路部分は急激に圧力が低下するため、この圧力低下に
伴って−１；流側より発熱体７部分に新たなインクが流
入する一方、発熱体７の下流側には、ここに連通したバ
イパス管路９を経て新たなインクが流入し、この新たな
インクにより発熱体７を効果的に冷却する一方、オリラ
ンス６内面との間で新たなメニスカスをいち早く形成し
て次の記録のための体勢を整える（第２図（Ｃ））。When the ink droplets and vaporized ink are ejected from the orifice 6 in this way, the pressure in the flow path from the heating element 7 to the orifice 6 decreases rapidly. New ink flows into the heating element 7 portion, while new ink flows into the downstream side of the heating element 7 via the bypass pipe 9 connected here, and this new ink effectively activates the heating element 7. At the same time, a new meniscus is quickly formed between the inner surface of Orilance 6 and the position for the next recording is prepared (Fig. 2 (C)).
（効果）
以−１−述べたように本発明によれば、オリフィス近傍
に設けた加熱手段によってその部分の記録液体を加熱気
化し、その際の体積膨張によってオリフィスから記録液
体を液滴として吐出させるようにしたので、記録液体を
直接加圧する機構を不要となしてこの種の記録装置の大
巾な小型化を可能にすると同時に、と複合ヘッドの高密
度化を図ることができる。(Effects) As described above-1-, according to the present invention, the heating means provided near the orifice heats and vaporizes the recording liquid in that area, and the volumetric expansion at that time causes the recording liquid to be ejected as droplets from the orifice. This eliminates the need for a mechanism for directly pressurizing the recording liquid, making it possible to significantly reduce the size of this type of recording apparatus, and at the same time, it is possible to increase the density of the composite head.
しかも、記録液体流路に加熱手段をバイパスする流路を
設けたので、液滴噴出後の加熱部へ下流側と４二流側よ
り記録液体を迅速に充填することにより、記録速度を犬
１１に向」−させると同時に、新たな記録液体の供給に
より加熱手段の効果的な冷却を可能となして、記録誤動
作を未然に防ぐことができる。Moreover, since a flow path that bypasses the heating means is provided in the recording liquid flow path, recording liquid can be quickly filled into the heating section from the downstream side and the 42nd stream side after the droplets are ejected, thereby increasing the recording speed. At the same time, the heating means can be effectively cooled by supplying new recording liquid, thereby preventing recording malfunctions.
第１図は本発明の一実施例を示す装置の概要構成図、第
２図（ａ）乃至（Ｃ）はその記録動作を示す説明図であ
る。FIG. 1 is a schematic configuration diagram of an apparatus showing an embodiment of the present invention, and FIGS. 2(a) to (C) are explanatory diagrams showing its recording operation.
Claims (1)
受けて記録液体を加熱する加熱手段を設けるとともに、
一端が該加熱手段の上流側において、他端が該加熱手段
の下流側においてそれぞれ上記流路に連通するバイパス
流路を併設したことを特徴とする記録液滴吐出型記録装
置。A heating means for heating the recording liquid in response to a recording signal is provided in the vicinity of the droplet ejection orifice of the recording liquid flow path, and
A recording droplet discharge type recording apparatus characterized in that a bypass flow path is provided, one end of which communicates with the flow path on the upstream side of the heating means, and the other end of which communicates with the flow path on the downstream side of the heating means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12683485A JPS6116865A (en) | 1985-06-11 | 1985-06-11 | Recording globule discharge type recording device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12683485A JPS6116865A (en) | 1985-06-11 | 1985-06-11 | Recording globule discharge type recording device |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7057278A Division JPS54161935A (en) | 1978-06-12 | 1978-06-12 | Ink jet printer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6116865A true JPS6116865A (en) | 1986-01-24 |
| JPS6159915B2 JPS6159915B2 (en) | 1986-12-18 |
Family
ID=14945057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12683485A Granted JPS6116865A (en) | 1985-06-11 | 1985-06-11 | Recording globule discharge type recording device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6116865A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2738007A1 (en) * | 2012-11-29 | 2014-06-04 | Palo Alto Research Center Incorporated | Bypass flow path for bubbles in an ink jet printer |
-
1985
- 1985-06-11 JP JP12683485A patent/JPS6116865A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2738007A1 (en) * | 2012-11-29 | 2014-06-04 | Palo Alto Research Center Incorporated | Bypass flow path for bubbles in an ink jet printer |
| US9132634B2 (en) | 2012-11-29 | 2015-09-15 | Palo Alto Research Center Incorporated | Bypass flow path for ink jet bubbles |
| US9950523B2 (en) | 2012-11-29 | 2018-04-24 | Palo Alto Research Center Incorporated | Bypass flow path for ink jet bubbles |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6159915B2 (en) | 1986-12-18 |
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